Click here if you are having trouble logging into the forums
Privacy Policy |
Please read our Terms
of Service | Signup and
Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User
KennyJ
Reged: 04/27/03
Posts: 10163
Loc: Lancashire UK
|
Re: How should one check a binos performance
05/12/08 04:43 PM
|
|
|
Charles ,
If miscollimation is your main worry , then it may not be a bad idea to find out in more detail what EdZ uses to boost the magnification by a factor of 6x. and check your 8x binoculars for accurate alignment at 48x magnification with sub 1mm exit - pupils .
Of course you will absolutely need to mount the binoculars for such tests .
You may struggle to find a truly satisfying result , but at least if and when you find one that appears " perfectly aligned " at the BOOSTED magnification ( perhaps using the CESDewar suggested method of deliberate de - focus and superimposition ) you can pretty well rest assured that you will not be troubled by miscollimation at 8x. !
At least you have narrowed down your specific concerns to NIGHT - TIME , ASTRO USE -- perhaps even using the binoculars MOUNTED , as EdZ invariably does during his tests .
Hand - held binoculars for DAYIME use present a wholly different set of desirables -- which is why you are unlikely to find any apparant cohesion between the models EdZ rates so highly , and those models rated so highly by afficionados who frequent , for example , the binocular forums on birdforum.net .
Kenny
--------------------
If everyone is thinking the same thing , no-one is thinking - General George S.Patton
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
|
|
4 registered and 24 anonymous users are browsing this forum.
Moderator: EdZ
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Rating:
Thread views: 619
|
|
|
|
|
|
|
Previous
Index
Next
Flat
Edit
Reply
Quote
